The union''s next bargaining session with ABM, Airserv and Flagship is scheduled for today and a strike could be called before the start of the holiday weekend if a deal isn''t reached, the article noted.

LAX officials have not yet received information from United, American or the 15 other airlines on how they plan to maintain janitorial services in Terminals 2, 4, 7 and 8 if a strike is called, said airport spokeswoman Nancy Castles.

The union filed a labor complaint against Airserv earlier this year after the company''s managers allegedly told several janitors to remove union stickers from their clothes, the article stated.

"The attempts to silence janitors not only angered employees of Airserv, but also employees of the contractors, which is a key reason why there was unanimous support for the strike authorization," Hay said.